Learn How to Trap the Rook: Decisive Material Gain
This middlegame puzzle shows a classic trapped piece idea in the Nimzo-Larsen Attack. White’s active pieces and king safety pressure force Black into a defensive response, but that response creates a tactical weakness around the king and the back rank. The key lesson is that a piece can be overloaded by threats against the king and a valuable target at the same time, turning a seemingly natural defense into a losing concession.